Hotlines are dedicated phone numbers that provide immediate assistance or information on specific issues. They are often set up by organizations, governments, or non-profits to help people in need. Common types of hotlines include those for mental health support, crisis intervention, and reporting emergencies. These services are typically available 24/7 and are staffed by trained professionals who can offer guidance, resources, or support. Hotlines can also serve as a way to report illegal activities or seek help for various concerns, such as domestic violence or substance abuse.